package com.example.medicine.md5_guid;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;

public class md5_guid{
private String password;
public md5_guid(String pwd){
        password=pwd;
        }
public String md5() {
        //MD5加密
        try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] messageDigest = md.digest(password.getBytes());

        // 将字节数组转换为十六进制字符串
        StringBuilder hexString = new StringBuilder();
        for (byte b : messageDigest) {
        String hex = Integer.toHexString(0xFF & b);
        if (hex.length() == 1) {
        hexString.append('0');
        }
        hexString.append(hex);
        }

        return hexString.toString();
        } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
        return null;
        }
        }

public String guid() {
        return UUID.nameUUIDFromBytes(password.getBytes()).toString();
        }
        }
